Let’s take a look at the renderings and original pictures first:
renderings
step:
Create different layers for the parts that need to be painted with different colors (see Figure 4). After coloring, see Figure 3:
Figure 3
Then adjust them separately according to the layer style of each layer, combined with the opacity (I applied this color without adjusting the opacity, and used soft light for most of the layer styles)
Figure 4
The final effect is as follows (isn’t it very simple? Haha):
Figure 5